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The Formula 310 Sun Sport is the compact Sun Sport, combining a 31-foot performance cruiser cockpit with a cabin sized for two, a private head and a simpler overnight mission than the larger 350.
The Formula 310 Sun Sport is the compact Sun Sport, combining a 31-foot performance cruiser cockpit with a cabin sized for two, a private head and a simpler overnight mission than the larger 350. Its strongest fit is couples and small families who want a performance-oriented day cruiser with enough cabin for a short overnight without carrying the systems footprint of a large crossover.
The 310 keeps the Sun Sport formula relatively compact at 31 feet and a 9-foot-6-inch beam. Hardtop and propulsion configuration can change real height and overall length, so marina and trailer planning should follow the exact build.
Formula currently describes twin 300- to 400-horsepower power and supports sterndrive or outboard configurations depending on build. That gives the 310 up to 800 total horsepower without turning it into a multi-engine offshore crossover.
When compact cabin is a priority, the reason to compare this boat with 350 Sun Sport or 330 Crossover Bowrider is simple. When couples overnighting is a priority, the sibling changes a major part of the ownership plan rather than just adding another foot of length.
For the 310 Sun Sport, couples overnighting should matter more than decorative options. For owners focused on couples overnighting, a buyer who rarely uses that capability may get better value from the adjacent model.
For owners focused on compact cabin, the biggest ownership compromise is infrastructure. In a purchase centered on couples overnighting, at 31′ 0″ hull / 32′ 8″ platform / 34′ 9″ OB and 9′ 6″ of beam, the exact lift, slip, trailer or transport plan should be known before financing.
Published factory figures. Confirm every dimension against the individual boat before you commit.
Deadrise: Deep-V; current page does not publish a degree in accessible specs
The 310 keeps the Sun Sport formula relatively compact at 31 feet and a 9-foot-6-inch beam. Hardtop and propulsion configuration can change real height and overall length, so marina and trailer planning should follow the exact build.
When wetbar-centered day use is a priority, Formula uses performance-oriented hull design across these categories, but the 310 Sun Sport should be judged by what the dimensions mean in real ownership. When traditional sport-cruiser cockpit is a priority, beam controls slip and road width. For owners focused on wetbar-centered day use, weight controls lift and tow requirements. For owners focused on traditional sport-cruiser cockpit, draft controls ramp and shallow-water access.
In a purchase centered on wetbar-centered day use, the published weight is not the delivered operating weight. In a purchase centered on traditional sport-cruiser cockpit, a full 138 gal fuel load, batteries, water, generator fuel where applicable, hardtop electronics, gear and passengers can add a meaningful margin.
From a wetbar-centered day use standpoint, inspect the running surface in bright light. From a traditional sport-cruiser cockpit standpoint, keel, chines, steps where applicable, strakes, transom corners and swim-platform joints should show consistent gelcoat and no unexplained repair pattern.
Formula currently describes twin 300- to 400-horsepower power and supports sterndrive or outboard configurations depending on build. That gives the 310 up to 800 total horsepower without turning it into a multi-engine offshore crossover.
From a couples overnighting standpoint, the exact engine package should be treated as part of the model name when comparing used boats. In a purchase centered on compact cabin, engine count, gearcase type, joystick hardware and total horsepower can change fuel burn, stern access and future replacement cost.
When couples overnighting is a priority, record every engine serial number and operating hour. From a compact cabin standpoint, multi-engine boats should have service records reviewed independently because one newer replacement lower unit or powerhead can make a matched-looking set mechanically uneven.
For owners focused on couples overnighting, outboard versions need lower-unit, propeller, trim, steering, mount and flushing checks. When compact cabin is a priority, sterndrive versions need drive oil, bellows or sealing hardware, gimbal-area inspection, engine-room ventilation and winterization history.
In a purchase centered on couples overnighting, the 310 Sun Sport should shift cleanly and hold a steady cruise without vibration or warning messages. For owners focused on compact cabin, joystick systems should be tested at the dock rather than assumed to work because the screen powers on.
From a couples overnighting standpoint, local service access is part of the power decision. In a purchase centered on compact cabin, a high-output configuration is less attractive when the nearest qualified technician is several hours from the boat’s home marina.
A sea trial should run long enough to show how the boat behaves during couples overnighting, not merely prove that the engines start. From a compact cabin standpoint, the 310 Sun Sport needs to idle, accelerate, cruise and return to the dock without electrical, steering, cooling or trim problems.
When couples overnighting is a priority, the right power package is the one that moves the normal crew confidently while leaving enough ownership budget for the service profile that comes with it.
Storage Length: Measure the completed boat, engines, platform and trailer if applicable
Fuel capacity on the 310 Sun Sport is large enough to affect both range and loaded displacement. When wetbar-centered day use is a priority, the buyer should plan from observed cruise fuel flow rather than assuming the published tank automatically translates into a fixed distance.
When traditional sport-cruiser cockpit is a priority, engine count and propulsion type matter. For owners focused on wetbar-centered day use, a twin or triple outboard version can have a different tank figure or real burn profile from a sterndrive sibling on the same hull.
For owners focused on traditional sport-cruiser cockpit, a full fuel load also changes acceleration and lift calculations. In a purchase centered on wetbar-centered day use, the difference is especially important on models carrying hundreds of gallons because gasoline alone can add thousands of pounds.
In a purchase centered on traditional sport-cruiser cockpit, freshwater capacity of 29 gal supports the cabin, head, galley, washdowns or shower systems that belong to this exact model. From a wetbar-centered day use standpoint, those pumps and hoses should be run long enough to reveal leaks.
The 310 Sun Sport should be sea-trialed at the speeds and loads the owner expects to use. For owners focused on couples overnighting, a short full-throttle run says less about ownership than how the boat leaves the dock, comes onto plane, cruises through chop and returns to a slip.
The 310 keeps the Sun Sport formula relatively compact at 31 feet and a 9-foot-6-inch beam. Hardtop and propulsion configuration can change real height and overall length, so marina and trailer planning should follow the exact build.
When compact cabin is a priority, at idle, practice reverse, a tight turn and a crosswind approach. In a purchase centered on couples overnighting, larger Formula models carry enough windage that joystick calibration, bow-thruster response where fitted and engine synchronization can matter more than top speed.
For owners focused on compact cabin, acceleration should be clean with several adults aboard. From a couples overnighting standpoint, watch forward visibility and whether the hull needs unusual tab or trim input just to feel level.
The cockpit is the center of the 310. U-shaped aft lounge seating, wetbar, convertible aft-facing sun lounge and an extended swim-platform option make it a social day boat first. The cabin supports the day rather than dominating it.
When wetbar-centered day use is a priority, the cockpit should be tested with a realistic group aboard. From a traditional sport-cruiser cockpit standpoint, sit adults in the bow, helm, aft seating and cabin entry, then move from one zone to another without clearing seats first.
For owners focused on wetbar-centered day use, storage matters because premium Formula models accumulate fenders, dock lines, boards, rods, coolers, towels, bedding and galley supplies quickly. When traditional sport-cruiser cockpit is a priority, empty showroom lockers can overstate how spacious the boat will feel on a real weekend.
In a purchase centered on wetbar-centered day use, helm sightlines should work with passengers seated forward. For owners focused on traditional sport-cruiser cockpit, the driver should not need to stand constantly just to see over the bow during acceleration.
From a wetbar-centered day use standpoint, at the stern, use the ladder, platform, doors and engine access. In a purchase centered on traditional sport-cruiser cockpit, the propulsion package changes where people step and whether the family works around engines or an integrated platform.
When wetbar-centered day use is a priority, below deck or inside the console, spend enough time to judge true headroom, berth length, ventilation and privacy. From a traditional sport-cruiser cockpit standpoint, overnight capability has value only if the intended passengers can actually sleep and move comfortably.
The ownership math on the 310 Sun Sport should include wetbar-centered day use. When traditional sport-cruiser cockpit is a priority, that expense can be more important over several seasons than a small difference in asking price, especially when the boat needs a larger slip, heavier lift, generator service or multiple-engine maintenance.
29-Gallon Freshwater System – Run the plumbing long enough to expose leaks, odors and weak pumps, because compact cabin depends on these systems remaining pleasant after a full day aboard.
Use the seating in every intended position and walk the traffic path with adults aboard so couples overnighting feels natural instead of forcing the crew to reshuffle constantly.
Use the seating in every intended position and walk the traffic path with adults aboard so traditional sport-cruiser cockpit feels natural instead of forcing the crew to reshuffle constantly.
Use the seating in every intended position and walk the traffic path with adults aboard so compact cabin feels natural instead of forcing the crew to reshuffle constantly.
Sit, lie down and inspect ventilation, moisture control and storage with wetbar-centered day use in mind; usable overnight space is more important than brochure dimensions.
Run the plumbing long enough to expose leaks, odors and weak pumps, because couples overnighting depends on these systems remaining pleasant after a full day aboard.
Match the exact engine package to service records, local dealer support and the demands of traditional sport-cruiser cockpit; propulsion condition can outweigh cosmetic option value.
Use the seating in every intended position and walk the traffic path with adults aboard so wetbar-centered day use feels natural instead of forcing the crew to reshuffle constantly.
Below, the U-shaped lounge, private head, optional air conditioning and entertainment equipment add enough overnight capability for a couple. Above, refrigeration, audio, navigation and hardtop options create the main service points beyond propulsion.
Start with batteries and charging. For owners focused on wetbar-centered day use, large Formula models can have multiple engine-start banks, house banks, generator batteries, chargers, inverters and heavy accessory loads. For owners focused on traditional sport-cruiser cockpit, voltage problems often appear first as random electronics faults.
In a purchase centered on traditional sport-cruiser cockpit, test every primary helm display, radar, depth source, autopilot or joystick function fitted to the exact boat. In a purchase centered on wetbar-centered day use, networked electronics are valuable only when the sensors and engine data actually communicate.
From a traditional sport-cruiser cockpit standpoint, run bilge pumps, high-water alarms, blowers on sterndrive versions and automatic engine-flush systems on outboard versions where fitted.
The 310 Sun Sport measures 31′ 0″ hull / 32′ 8″ platform / 34′ 9″ OB and carries a 9′ 6″ beam. When couples overnighting is a priority, those figures should be compared with the actual slip, lift and travel route before the purchase agreement is final.
In a purchase centered on compact cabin, boats wider than conventional trailer width should be treated as professional-transport or permit-planning projects. For owners focused on couples overnighting, even when a trailer exists, that does not mean routine weekend towing is practical.
From a compact cabin standpoint, lift capacity needs a loaded calculation. Start with 10,125 lbs approximate / 10,700 lbs with hardtop, then add fuel, water, batteries, options, stored gear and any generator or stabilization equipment.
When compact cabin is a priority, bunks need to clear steps, transducers, drives, outboards, trim tabs and platform hardware. In a purchase centered on couples overnighting, a lift designed for another hull of similar length is not automatically correct.
310 Sun Sport values move with propulsion, hardtop, cabin air, refrigerator and entertainment equipment, electronics generation, extended swim platform, interior condition and whether the head and water systems have been maintained.
From a couples overnighting standpoint, the first adjustment should be propulsion. For owners focused on compact cabin, engine brand, engine count, horsepower, hours, joystick hardware and documented service can represent a large share of the boat’s real value.
When couples overnighting is a priority, the second adjustment should follow the model’s mission. In a purchase centered on compact cabin, fishing hardware, cabin equipment, coupe systems, generators, stabilizers, hardtops and premium electronics only deserve a premium when they function correctly.
Illustration only and not an offer of credit.
From a compact cabin standpoint, keep room in the monthly ownership budget for the propulsion service, fuel, insurance, generator or climate systems and marina infrastructure required by this exact 310 Sun Sport.
Illustration only and not an offer of credit. Your actual rate and term depend on credit profile, vessel age, loan amount and ownership structure.
The most useful alternative to the 310 Sun Sport is 350 Sun Sport or 330 Crossover Bowrider because it changes a major part of the platform rather than simply changing upholstery.
The compact sun sport, combining a 31-foot performance cruiser cockpit with a cabin sized for two, a private head and a simpler overnight mission than the larger 350 is the reason to stay with this model.
From a wetbar-centered day use standpoint, choose the alternative when the buyer needs its different propulsion, cabin, fishing, beam or systems profile more than the 310 Sun Sport’s specific strengths.
The compact cabin side of this comparison should be experienced in person. For owners focused on traditional sport-cruiser cockpit, the right model should make that activity easier without creating a storage or service burden that feels unreasonable.
When wetbar-centered day use is a priority, the final choice should be made before financing so the payment supports the right hull and propulsion package instead of locking the buyer into a compromise.
Start with the hull identification and exact model year. When compact cabin is a priority, Formula updates propulsion menus, electronics, layouts and option packages over time, so a current web specification should not be pasted blindly onto an older used boat.
Verify the basic dimensions: 31′ 0″ hull / 32′ 8″ platform / 34′ 9″ OB, 9′ 6″ beam, 10,125 lbs approximate / 10,700 lbs with hardtop published weight, 138 gal fuel and the published propulsion reference of Up to 800 total HP; twin 300-400 HP power.
For owners focused on couples overnighting, inspect the hull before getting distracted by paint or cabin decor. For owners focused on compact cabin, running-surface damage, transom repairs, hardtop stress or poor lift support can be far more expensive than worn upholstery.
In a purchase centered on couples overnighting, review every engine serial number and service record. In a purchase centered on compact cabin, the larger Formula models are often multi-engine boats, so uneven hours or a recently replaced powerhead need to be understood.
Start your application with the actual Formula 310 Sun Sport details with model year, propulsion, engine hours where available, seller type and asking price.
The strongest fit is couples and small families who want a performance-oriented day cruiser with enough cabin for a short overnight without carrying the systems footprint of a large crossover.
Formula publishes 31′ 0″ hull / 32′ 8″ platform / 34′ 9″ OB of length, a 9′ 6″ beam and 10,125 lbs approximate / 10,700 lbs with hardtop approximate weight. When couples overnighting is a priority, those numbers should be checked against the actual slip, lift, route and storage plan because installed propulsion and options can make the delivered boat materially larger or heavier.
The current power reference is Up to 800 total HP; twin 300-400 HP power. The right choice depends on engine count, local service, loaded performance and the way compact cabin changes fuel burn, stern access and future replacement cost.
For owners focused on traditional sport-cruiser cockpit, published fuel capacity is 138 gal. In a purchase centered on compact cabin, range should come from observed cruise fuel flow with the normal crew and gear aboard, while preserving a reserve instead of converting tank size directly into a mileage promise.
Start with propulsion and the systems that define couples overnighting, then move to hull structure, helm electronics, plumbing, climate or fishing equipment and storage history. From a wetbar-centered day use standpoint, deferred mechanical work can overwhelm a cosmetic discount quickly.
Choose the alternative when its different propulsion, beam, cabin or deck mission serves traditional sport-cruiser cockpit better than this model’s strengths. When couples overnighting is a priority, the right comparison should change a major ownership decision, not merely a color or upholstery package.
Use the published 9′ 6″ beam and 10,125 lbs approximate / 10,700 lbs with hardtop approximate weight only as the starting point. For owners focused on traditional sport-cruiser cockpit, fuel, water, batteries, engines, hardtop gear and stored equipment all belong in lift and transport calculations.
Potentially. In a purchase centered on compact cabin, model year, value, condition, seller type, transaction amount and borrower qualifications matter. From a wetbar-centered day use standpoint, sending Float Finance the actual listing keeps the financing discussion tied to the exact propulsion and equipment being purchased.
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